Niki antenne yigihe cyigihe

UwitekaAndika Antenna Yigihe(LPA) byasabwe mu 1957 kandi ni ubundi bwoko bwa antenne idahinduka.

Ishingiye ku gitekerezo gikurikira: iyo antenne ihinduwe ukurikije ikintu runaka cyagereranijwe τ kandi ikomeza kungana nuburyo bwambere, antene ifite imikorere imwe mugihe ibintu ari f na τf. Hariho uburyo bwinshi bwa antenne yigihe cyigihe, muribwo Log Dipole Antenna (LDPA) yatanzwe mumwaka wa 1960 ifite ubwaguke bwagutse cyane kandi imiterere yoroheje, kuburyo yakoreshejwe cyane mugice gito, ultra-shortwave na microwave.

Antenna yigihe cyigihe gisubiramo gusa imirasire yimiterere nibiranga impedance mugihe runaka. Nyamara, kuri antenne ifite imiterere nkiyi, niba τ itari munsi ya 1, ihinduka ryibiranga muri cycle imwe ni nto cyane, kubwibyo ahanini byigenga kuri frequency.

Hariho ubwoko bwinshi bwa antenne ya logique, harimo antenne ya dipole ya dipole na antopole ya monopole, antenne ya logique ya resonant V, antenne ya logique spiral spiral, nibindi, muribyo bikunze kugaragara cyane ni antenne ya logique ya dipole.

Nka antenne ya ultra-Broadband antenna, ubwaguke bwagutse ni bugari cyane, kugeza 10: 1, kandi akenshi bikoreshwa mugukwirakwiza ibimenyetso, gukwirakwiza mu nzu no gukwirakwiza ibimenyetso bya lift. Mubyongeyeho, antenne yigihe cya logarithmic irashobora kandi gukoreshwa nkisoko yo kugaburira antenne ya microwave. Kubera ko agace keza kagenda hamwe ninshuro zikorwa, gutandukana hagati yakarere keza no kwibanda kumurongo wose wogukora bigomba kuba murwego rwo kwihanganira byemewe mugihe cyo kwishyiriraho.